Which of the following statements is false? A. Scalar quantities have size or magnitude only
B. Vector quantities have both magnitude and direction
C. Mass, length and time are all scalar quantities
D. Distance, velocity and acceleration are all vector quantities

Which of the following is an example of units for speed

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.